DTC    C0226/21    SFR Solenoid Circuit

DTC    C0236/22    SFL Solenoid Circuit

DTC    C0246/23    SRR Solenoid Circuit

DTC    C0256/24    SRL Solenoid Circuit

DTC    C1225/25    SM Solenoid Circuit

for Preparation Click here


DESCRIPTION

These solenoids turn on when signals are received from the skid control ECU and control the pressure acting on the wheel cylinders to control the braking force.

DTC No.
DTC Detecting Condition
Trouble Area
C0226/21
C0236/22
C0246/23
C0256/24
Open or short in the solenoid circuit continues for 0.05 sec. or more.
  1. ABS and TRACTION actuator assembly
  2. Solenoid circuit
C1225/25
When any of the following is detected:
  1. While outputting switching solenoid (SM1 or SM2) ON, overcurrent continues for 0.05 sec. or more.
  2. While outputting switching solenoid (SM1 or SM2) OFF, an open circuit continues for 0.05 sec. or more.
  3. While outputting switching solenoid (SM1 or SM2) ON, an open circuit continues for 0.1 sec. or more.
  4. While outputting switching solenoid (SM1 or SM2) OFF, current continues to be applied for 0.1 sec. or more.
  5. Short to GND in the switching solenoid (SM1 or SM2) continues for 0.1 sec. or more.
  6. Switching solenoid SM1 and SM2 are shorted for 0.1 sec. or more.
  1. ABS and TRACTION actuator assembly
  2. SM1 or SM2 circuit

WIRING DIAGRAM


C109386E01


INSPECTION PROCEDURE

NOTICE:
When replacing the ABS and TRACTION actuator assembly, perform zero point calibration (Click here).

1.RECONFIRM DTC

HINT:
These codes are detected when a problem is determined in the ABS and TRACTION actuator assembly.
The solenoid circuits are in the ABS and TRACTION actuator assembly.
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if any DTC code is output before replacing the ABS and TRACTION actuator assembly.

  1. Clear the DTC (Click here).

  1. Start the engine.

  1. Drive the vehicle at the speed of 4 mph (6 km/h) or more.

  1. Check that the same DTC is recorded (Click here).

    Result:

    Condition
    		Proceed To
    DTCs (C0226/21, C0236/22, C0246/23, C0256/24 and C1225/25) are not output
    		A
    DTCs (C0226/21, C0236/22, C0246/23, C0256/24 and C1225/25) are output
    		B

    HINT:
    1. If a speed signal of 4 mph (6 km/h) or more is input to the skid control ECU, with the engine switch on (IG) and the stop light switch off, the ECU performs self diagnosis of the motor and solenoid circuits.
    2. If the normal system code is output (the trouble code is not output), slightly jiggle the connectors, wire harness, and fuses of the ABS and TRACTION actuator assembly. Make sure that no DTCs are output.
    3. If any DTCs are output while jiggling a connector or wire harness of the ABS and TRACTION actuator (skid control ECU), inspect and repair the connector or wire harness.



B
REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY
A

END